Valve for air-flues



2 Sheets-Sheet 1.

(No Model.)

E. G. GONDIT.

VALVE FOR AIR FLUES. No. 457,810. Patented Aug. 18,1891.

Tu/.f T1 15;

Qmmmw. avwawtoz:

551 his attovwgfl (No Model.) ZSheets-Sheet 2.

E. C. OONDIT.

VALVE FOR AIR FLUBS.

Patented Aug. 18, 1891.

amvewto'a;

R. 60022 dii,

WWI mews:

' UNITED STATES PATENT OFFICE.

EZEKIEL C. OONDIT, OF DENVER, COLORADO.

VALVE FOR AIR-FLUESQ SPECIFICATION forming part of Letters Patent No.457,810, dated August 18, 1891.

i Application filed June 26, 1890. :Serial No. 356,835. (No model.)

To all whom it may concern.-

Be it known that L'EZEKIEL C. CONDIT, of Denver, Arapahoe county,Colorado, have invented certain new and usefullmprovements in Valves forAir-Flues, of which the'following is a full, clear, and exactdescription, reference being had to the accompanying drawings, forming apart hereof.

My invention relates generally to an improved method for heating andventilating buildings by what is known as the Ruttan system, and moreparticularly to certain improvements upon Patent No. 261,879, issued toIsaac D. Smead, dated August 1, 1882. In this and other similar devicesthe valve swings on a pivot in the hot and cold air passages and must beentirely closed, or nearly so, before any appreciable change intemperature is secured, and when a change is made it is so sudden thatthe valve must soon be reversed, thus making continual adjustmentnecessary. Furthermore, these devices furnish no means by which auniform temperature can be secured in rooms in the different stories ofa building, and therefore are not adapted to a series of rooms one abovethe other. The devices which have been in use also possess thedisadvantage that on the chilly days that often occur before the furnaceis started for the winter, and after it is extinguished for the summer,they provide no means by which connection with the outside air by meansof the flue can be entirely closed, and on such days, the cold-airpassage being closed by the double damper, cold air will pass throughthe heating-chamber into the flue by means of the hot-air passagewithout being warmed in any manner, thus creating an unpleasant draft inthe rooms.

The object of my invention is to remedy these defects and provide meanswhereby any number of rooms may be heated uniformly and the temperatureof each room regulated independently of the others, and uniformity oftemperature secured in all.

With these objects in View my invention consists in the peculiarconstruction-and novel combination of the several parts, as is shown inthe accompanying drawings, and hereinafter referred to.

In the said drawings, which form a part of this specification, Figure 1is a vertical section of a portion of a building provided with myapparatus. Fig. 2 is a horizontal section of the flues and valves. Fig.3 is a front elevation of the regulating mechanism, and Figs. 4 and 5are detail views of the operating-pulley.

Referring to the drawings, A indicates a building having the usualair-passage a, heating-chamber a, and flues a provide a flue for eachroom, said flues being arranged in series, as shown in Fig. 2. Bindicates a furnace provided with the usual heating drums for heatingthe air in the chamber a. The wall separating this chamber and the fluesis provided with two apertures O and O for each flue, near the top andbottom, respectively, of the said chamber. In the sides of each flue areplaced the guideplates D, said plates having the grooves d, adapted toreceive the sliding valves-E and F. Warm air will pass through thepassage 0 into the flue and cold air through the passage 0 when opened.The valve E is adapted to regulate the current of heated air and thevalve F to regulate the current of either warm or cold air, as clearlyshown in Fig. 1. The valve E is under the control of the personsuperintending the heating of the building, while the valve F is to beregulated by the occupants of the room to be heated. The valve E isoperated by means of a chain c, which is wound upon a spool G, saidspool being journaled in a bracket H upon a shaft H, the outer end ofsaid shaft extending through the wall into the room and being providedwith a socket h to receive a key carried by the person in charge of theheating apparatus. The bracket H is mounted upon a bar I secured in theflue, said bar sustaining all the operating mechanism.

The valve F is operated by means of the chain f, said chain passingaround the pulley-wheel K, journaled in the bracket K upon the shaft Ksaid shaft extending through the wall into the room. On the end of thisshaft is secured an operating-handle L, whereby the valve can be raisedor lowered by the occupants of the room. Each of the shafts H and K isprovided with a pawland-ratchet attachment for holding it in place.

The pulley-wheel K is peculiarly construct- In practice, I a

ed and consists of a hub periphery or rim, and a single spoke. Thesupporting-bar I is passed between the hub and periphery or mm andcontacts with the single spoke, thereby limiting the pulley to a singlerevolution. The object of this is to be able to locate the position ofthe valve F by the location of the handle L.

M indicates the register for the admission of air.

The operation of my improved apparatus is as follows: The cold airentering through the passage a passes upward through the heating-chambera and into the fiue a by the passage 0. The valve E in each of theseries of fines being under the control of the anitor is raised orlowered by that person, as may be necessary to raise or lower thetemperature, and thereby secure a uniform temperature in all the roomsconnected with said series of fines. After this has been secured, if anyroom is too warm the occupants by the use of the handle L may raise thevalve F and by so doing shut oif a portion of the warm air passingthrough the opening 0 and allow the cold air to enter through thepassage 0, which would have the effect of can admit warm or cold air, orany proportion of either, as desired. All surplus heated air passes intothe halls by the pipe N.

Having thus described my invention, what I claim is The combination,with the wheel K, composed of a hub and rim connected by a single spoke,of asupporting-bar,bearings thereon carrying the said hub, a valveadapted to close either the hot or cold air opening into a flue, and aflexible connection between said valve and rim, substantially asdescribed.

In testimony whereof I aifix my signature in presence of two witnesses.

EZEKIEL O. CONDIT. Witnesses:

C. W. COWELL, 1-1. G. JOHNSON.

